MECHANICAL TO ELECTRIC SPEEDO PROBLEM
11-30-2007 | 08:21 PM
#1
Thread Starter
Joined: Nov 2006
Posts: 299
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From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
MECHANICAL TO ELECTRIC SPEEDO PROBLEM
I JUST PUT TOGETHER AN87 GTA AND SWAPPED OUT THE 700R4 TO A T-5 THE CAR IS CARBURATED NOW AND I SOLD OFF THE COMPUTER AND TPI. MY SPEEDO DONT WORK (EVERYTHING ELES DOES) I DONT KNOW HOW THE ELECTRIC SPEEDO WOULD WORK IN THESE CAR MAKING IT HARD TO TROUBLESHOOT. DO I NEED TO PUT A COMPUTER IN IT?? I KNOW THAT THE 2 WIRES FROM THE SENDER GO TO THE BUFFER (YELLOW BOX BY WERE THE COMPUTER WOULD BE) AND THE LITTLE GREEN/BLACK WIRE GOES TO THE "S" SIDE OF THE SPEEDO. THATS ALL I GOT SOME ONE HELP ME HERE
12-01-2007 | 07:15 PM
#2
Thread Starter
Joined: Nov 2006
Posts: 299
Likes: 0
From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
Re: MECHANICAL TO ELECTRIC SPEEDO PROBLEM
does anyone know if i need a computer to get my speedo to work??
12-01-2007 | 07:39 PM
#3
Joined: Aug 2006
Posts: 12,667
Likes: 50
From: Central NJ
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: MECHANICAL TO ELECTRIC SPEEDO PROBLEM
i have an 86, and i dont need the computer
what type of speed sensor is on the trans mechanical or electric? and how is it hooked up
what type of speed sensor is on the trans mechanical or electric? and how is it hooked up
12-01-2007 | 09:25 PM
#4
Thread Starter
Joined: Nov 2006
Posts: 299
Likes: 0
From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
Re: MECHANICAL TO ELECTRIC SPEEDO PROBLEM
the car was set up with a 700r4 auto with an electric vss. i just switched to a t5 manual and found an electric vss and hooked it up. nothing no power goes to you vss and if you put power to one wire and drive it with a test light on the other wire you get nothing to the test light
12-02-2007 | 01:48 PM
#5
Joined: Aug 2006
Posts: 12,667
Likes: 50
From: Central NJ
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: MECHANICAL TO ELECTRIC SPEEDO PROBLEM
are the drive/driven gears in the trans? is the sender good?
12-02-2007 | 07:46 PM
#6
Thread Starter
Joined: Nov 2006
Posts: 299
Likes: 0
From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
Re: MECHANICAL TO ELECTRIC SPEEDO PROBLEM
yes all there and working
12-06-2007 | 01:43 PM
#7
Joined: Oct 2006
Posts: 823
Likes: 1
From: erlangen, Germany
Car: 1991 Z28 1LE
Engine: LS1
Transmission: T56
Axle/Gears: 3.42
Re: MECHANICAL TO ELECTRIC SPEEDO PROBLEM
What car did the T-5 come out of? If it was originally for a cable driven speedometer you will have to change the tailshaft housing to an electric one.
The cable driven transmissions still had a vss mounted on the side after 85 I think but that was just for the ecm and cruise control. I am pretty sure that this is correct, maybe someone with more experience can chime in.
The cable driven transmissions still had a vss mounted on the side after 85 I think but that was just for the ecm and cruise control. I am pretty sure that this is correct, maybe someone with more experience can chime in.
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